From patchwork Tue Jun 5 21:07:03 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kim Phillips X-Patchwork-Id: 10449229 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 24AD960375 for ; Tue, 5 Jun 2018 21:10:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1508329CBB for ; Tue, 5 Jun 2018 21:10:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0972A29CBF; Tue, 5 Jun 2018 21:10:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 501E329CBB for ; 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Tue, 05 Jun 2018 21:09:48 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fQJBP-0007sB-O5 for linux-arm-kernel@lists.infradead.org; Tue, 05 Jun 2018 21:08:11 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6F1BA165D; Tue, 5 Jun 2018 14:07:41 -0700 (PDT) Received: from localhost.localdomain (unknown [10.118.17.245]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 580D93F59D; Tue, 5 Jun 2018 14:07:40 -0700 (PDT) From: Kim Phillips To: Mathieu Poirier Subject: [PATCH v4 07/14] coresight: allow dynamic-replicator to be built as a module Date: Tue, 5 Jun 2018 16:07:03 -0500 Message-Id: <20180605210710.22227-8-kim.phillips@arm.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180605210710.22227-1-kim.phillips@arm.com> References: <20180605210710.22227-1-kim.phillips@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180605_140759_856942_0DDA08F0 X-CRM114-Status: GOOD ( 17.54 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kefeng Wang , Kim Phillips , Geert Uytterhoeven , Alexander Shishkin , Gargi Sharma , David Howells , Russell King , Pavel Tatashin , Thierry Reding , Rik van Riel , Suzuki K Poulose , Eric Auger , Alex Williamson , Mike Rapoport , linux-arm-kernel , Greg Kroah-Hartman , Randy Dunlap , Oleg Nesterov , Linux Kernel Mailing List , Kirill Tkhai , Eric Biederman , Leo Yan , Andrew Morton , Robin Murphy , Todd Kjos MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Allow to build coresight-dynamic-replicator as a module, for ease of development. - Kconfig becomes a tristate, to allow =m - add a replicator_remove function, for module unload - add a MODULE_DEVICE_TABLE for autoloading on boot Cc: Mathieu Poirier Cc: Leo Yan Cc: Alexander Shishkin Cc: Randy Dunlap Cc: Suzuki K Poulose Cc: Greg Kroah-Hartman Cc: Russell King Signed-off-by: Kim Phillips --- drivers/hwtracing/coresight/Kconfig | 5 ++++- .../coresight/coresight-dynamic-replicator.c | 19 ++++++++++++++++++- 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/drivers/hwtracing/coresight/Kconfig b/drivers/hwtracing/coresight/Kconfig index 8c5e5407b7dd..945b17ca2eed 100644 --- a/drivers/hwtracing/coresight/Kconfig +++ b/drivers/hwtracing/coresight/Kconfig @@ -71,13 +71,16 @@ config CORESIGHT_SOURCE_ETM4X data tracing may also be available. config CORESIGHT_DYNAMIC_REPLICATOR - bool "CoreSight Programmable Replicator driver" + tristate "CoreSight Programmable Replicator driver" depends on CORESIGHT_LINKS_AND_SINKS help This enables support for dynamic CoreSight replicator link driver. The programmable ATB replicator allows independent filtering of the trace data based on the traceid. + To compile this driver as a module, choose M here: the + module will be called coresight-dynamic-replicator. + config CORESIGHT_STM depends on (ARM && !(CPU_32v3 || CPU_32v4 || CPU_32v4T)) || ARM64 tristate "CoreSight System Trace Macrocell driver" diff --git a/drivers/hwtracing/coresight/coresight-dynamic-replicator.c b/drivers/hwtracing/coresight/coresight-dynamic-replicator.c index f6d0571ab9dd..b59055097436 100644 --- a/drivers/hwtracing/coresight/coresight-dynamic-replicator.c +++ b/drivers/hwtracing/coresight/coresight-dynamic-replicator.c @@ -159,6 +159,15 @@ static int replicator_probe(struct amba_device *adev, const struct amba_id *id) return PTR_ERR_OR_ZERO(drvdata->csdev); } +static int __exit replicator_remove(struct amba_device *adev) +{ + struct replicator_state *drvdata = dev_get_drvdata(&adev->dev); + + coresight_unregister(drvdata->csdev); + + return 0; +} + #ifdef CONFIG_PM static int replicator_runtime_suspend(struct device *dev) { @@ -200,13 +209,21 @@ static const struct amba_id replicator_ids[] = { { 0, 0 }, }; +MODULE_DEVICE_TABLE(amba, replicator_ids); + static struct amba_driver replicator_driver = { .drv = { .name = "coresight-dynamic-replicator", + .owner = THIS_MODULE, .pm = &replicator_dev_pm_ops, .suppress_bind_attrs = true, }, .probe = replicator_probe, + .remove = replicator_remove, .id_table = replicator_ids, }; -builtin_amba_driver(replicator_driver); +module_amba_driver(replicator_driver); + +MODULE_AUTHOR("Pratik Patel "); +MODULE_DESCRIPTION("Arm CoreSight Dynamic Replicator Driver"); +MODULE_LICENSE("GPL v2");